<template>
    <div class="com">
        我是B组件
    </div>
</template>
<script setup lang="ts">

</script>
<style scoped lang="scss">
  .com{
        height: 300px;
        border: 2px solid #ccc;
        justify-content: center;
        font-size: 20px;
        display: flex;
        align-items: center;
        width: 600px;
    }
</style>